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2. Please determine and identify on the drawings the minimum header sizes for all <br /> openings in any bearing wall transferring loads from the new roof trusses. <br /> Construction <br /> 1. Previous comment. Please submit floor plans indicating the layout, egress, and details <br /> of the fire separations of the two residential units in the building. <br /> a. Floor plans and details should show compliance with the minimum requirements <br /> of the 2012 International Property Maintenance Code and Chapter 3 of the 2012 <br /> International Residential Code, to include egress windows, guards, handrails, <br /> stairs, smoke and carbon monoxide alarms to meet the minimum standards of <br /> these two codes. <br /> b. Since the conversion from retail to residential was not previously permitted, a <br /> horizontal one hour separation should be shown on the drawings between the <br /> first and second floors, including details of the tested assembly for the floor <br /> ceiling construction and supporting structure, per IRC R302.3. <br /> c. Any layout of a duplex conforming to the requirements of the 2012 International <br /> Residential Code would be acceptable, to include one or two stories. <br /> i. Please note that this could include a private garage for use by both <br /> residential units, provided that a one hour fire separation between the <br /> garages and fire separation between the garage and the unit above is <br /> shown on the drawings, per IRC section R302.3 and R302.6. <br /> ii. Please note that commercial use of the storage or garage space by <br /> someone other than the residents of the individual residential units in the <br /> building is not allowed. <br /> d. Where interior drywall or exterior sheathing on exterior walls is exposed during <br /> construction, wall details should be shown on the drawings to comply with WSEC <br /> Table R402.1.1 (new walls) and R101.4.3, exception 3 (exposed cavities) for <br /> energy requirements. <br /> e. The roof should be shown on the drawings with R-49 insulation on the <br /> architectural drawings, per WSEC R402.1.1. <br /> f. Handrails meeting the minimum requirements of the IPMC should be shown at <br /> all existing stairs, at least on one side of the stair run, per IPMC 307.1. <br /> g. Smoke and carbon monoxide alarms should be shown on the drawings per IRC <br /> sections R314.3 and R315.3, as amended by the State of Washington. <br /> h. Hardwired interconnected smoke alarms are required where the ceilings have <br /> been removed. <br /> i. Where toilet room ceilings are being replaced, new toilet room exhaust fans <br /> (f Or5r should be replaced with a whole house fan, shown on the drawings to be ducted <br /> f�,�,�;� directly to the outside, meeting the minimum requirements of 50 cfm <br /> intermittent operation, or 20 cfm continuous operation, maximum 1 sone, per <br /> IRC Table M1507.4 and IRC section 1507.3.4.2, as amended by the State of <br /> Washington. <br /> All codes cited refer to the 2012 International Residential Code (IRC), 2012 International <br /> Property Maintenance Code (IPMC), the 2012 International Fire Code (IFC), and the 2012 <br /> Washington State Energy Code (WSEC), as amended by the State of Washington and adopted <br /> by the City of Everett. <br /> CITY OF EVERETT • 3200 Cedar Street • Everett WA 98201 425 257-8800 • Fax 425 257-8882 I �� <br />